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Inventor:
Takahashi; Katsutoshi
Address:
Tokyo, JP
No. of patents:
27
Patents:




Patent Number Title Of Patent Date Issued
7586091 Mass spectrometric system and mass spectrometry September 8, 2009
After a sample is previously separated into plural components in a channel formed in a microchip (353), the channel is irradiated along a separation direction with a laser beam from a laser oscillator (361) to sequentially ionize each fraction separated in the channel. The ionized fracti
7424191 System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber September 9, 2008
A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe ligh
7146085 Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optica December 5, 2006
A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe ligh
7003202 Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optica February 21, 2006
A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe ligh
5747502 Process for preparing benzo[c]phenanthridinium derivatives, novel compounds prepared by said pro May 5, 1998
The present invention relates to benzo[c]phenanthridinium derivative of the general formula A: ##STR1## wherein M and N individually represent a hydroxyl or lower alkoxy group, or M and N simultaneously represent a hydrogen atom or together form a methylenedioxy group, X.sup.- re
5214048 Oxetanocins May 25, 1993
This invention relates to novel oxetanocins represented by the following general formula (I): ##STR1## wherein R represents a group represented by ##STR2## and their pharmacologically acceptable salts which have antiviral activities.
5179084 Antiviral phosphoric acid esters of oxetanocins January 12, 1993
The present invention relates to phosphoric acid esters of oxetanocins having an antiviral activity which are represented by general formula (I): ##STR1## wherein R.sub.1 represents a phosphoric acid ester residue, X represents hydrogen, hydroxy or hydroxymethyl group, and B represen
5128493 Platinum complexes July 7, 1992
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lo
5068376 Novel platinum complexes November 26, 1991
A diamine platinum (II) complex represented by the general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## wherein R.sub.5 and R
5041447 Oxetanocin-related compounds and pharmaceutical compositions containing them August 20, 1991
This invention relates to oxetanocin-related compounds represented by the following formula (I): ##STR1## [in formula (I), R.sub.1, Y and B have the following meanings: (a) R.sub.1 represents --CH.sub.2 OH or --CH.sub.2 OCO-(alkyl),(b) Y represents ##STR2## provided that R.s
4987246 Novel platinum complexes January 22, 1991
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lo
4956504 Novel spergualin-related compounds and process for producing the same September 11, 1990
The present invention relates to novel Spergualin-related compounds represented by the general formula [I] ##STR1## (wherein X is ##STR2## R is --H or --CH.sub.2 OH; R.sub.1 is --H, ##STR3## R.sub.2 is a residue obtained by removing, from an amino acid or peptide, the
4921984 Novel platinum complexes May 1, 1990
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and
4864043 Platinum complexes September 5, 1989
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and
4861905 Platinum complexes August 29, 1989
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lo
4824955 Selenium oxy chloride-pyridine or bipyridine complexes April 25, 1989
This invention relates to the novel selenium compounds which are useful as an antineoplastic agent. The compounds are represented by the general formula (I):wherein R, X, A and Y represent the groups specified below, a represents a number of 0 or 1, b represents a number of 0, 1 or 2, an
4808703 Novel 3-(4'-aminobutylamino) propylaminobleomycin derivatives February 28, 1989
Disclosed is a 3-(4'-aminobutylamino) propylaminobleomycin having low pulmonary toxicity, which expressed by the following general formulawherein [BX] represents a residue remaining after removing a hydroxyl group from the carboxyl group of bleomycinic acid, A represents a group of the f
4737589 Platinum Complexes April 12, 1988
A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and
4607114 Novel platinum complexes August 19, 1986
This invention relates to a novel platinum-diamine complexes represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a lower alkyl group having 1 to 3 carbon atoms or jointly represent an alkylene group having 3 to 6 carbon atoms; two X's each rep
4568490 Aminopropylaminobleomycin derivatives and process for preparation thereof February 4, 1986
An aminopropylaminobleomycin represented by the following formula or a salt thereof, which is minimized in side effects such as pulmonary toxicity:wherein[BX] represents the acyl group of bleomycinic acid whose formula differs from that of bleomycin acid by the removal of the hydroxyl group
4556735 Spergualin-related compounds having a phenylene group as well as a process for producing the sam December 3, 1985
The invention relates to Spergualin-related compounds of the formula: ##STR1## (wherein R.sub.1 is a lower alkylene group which may be substituted by a hydroxymethyl group; X is a hydrogen atom or a halogen atom; m and n are each 0 or an integer of 1 to 5) and salts thereof and a pro
4537880 Aminopropylaminobleomycin derivatives and process for preparation thereof August 27, 1985
An aminopropylaminobleomycin represented by the following formula or a salt thereof, which is minimized in side effects such as pulmonary toxicity:wherein[BX] represents the acyl group of bleomycinic acid whose formula differs from that of bleomycin acid by the removal of the hydroxyl group
4529549 Spergualin-related compounds and process for the preparation thereof July 16, 1985
This invention relates to a novel spergualin-related compound and a process for the production thereof. The novel compound, which has a high antitumor activity, is represented by the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom, hydroxyl group, or an alipha
4500452 (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof February 19, 1985
A promising carcinostatic (amido)N-substituted bleomycin represented by the following formula, or a salt thereof and a process for the preparation thereof: ##STR1## wherein BM represents a moiety of bleomycin skeleton; X represents an alkyl of 1 to 18 carbon atoms, an aminoalkyl
4472304 (Amido)N-substituted bleomycins, salts thereof and process for preparation thereof September 18, 1984
A promising carcinostatic (amido)N-substituted bleomycin represented by the following formula, or a salt thereof and a process for the preparation thereof: ##STR1## wherein BM represents a moiety of bleomycin skeleton; X represents an alkyl of 1 to 18 carbon atoms, an aminoalkyl
4327081 Method of enhancing absorption of antitumor agent into gastro-intestinal tumor site and orally a April 27, 1982
This invention relates to a method for selectively enhancing absorption of 5-fluorouracil, bleomycins or bleomycin derivatives into the gastrointestinal tumor site by orally administering such substance together with an alkali metal salt of polyacrylic acid, and an orally administrab
4273761 Method of enhancing absorption of antitumor agent into gastrointestinal tumor site and orally ad June 16, 1981
This invention relates to a method for selectively enhancing absorption of 5-fluorouracil, bleomycins or bleomycin derivatives into the gastrointestinal tumor site by orally administering such substance together with an alkali metal salt of polyacrylic acid, and an orally administabl


 
 
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